Colter.



' Patented Aug. 8, I899. A. C. GAYLORD.

C 0 L T E R (Application filed May 25, $899.)

2 Sheets-Sheet I.

(-No Model.)

N VE N TOP 6.. fikylard.

WITNESSES A TTOHNE rs.

Patented Aug. 8, I899. A. c. GAYLORD.

CULTER.

(Application filed May 25, 1899.)

2 f. 9 6 h A 8 B 0 h s 2 (No Model.)

l/V VE N TOR flirt/21a (I Gaylord [7 A TTOHNE 7S U ITED STAT S PATENTOFFICE.

ARTHUR COWLES GAYLORD, OF SANDOVAL, ILLINOIS.

C OLTE R.

SPECIFICATION forming part of Letters Patent No. 630,680, dated August8, 1899.

Application filed May 25, 1899. Serial No. 718,226. (No model.)

To all whom it may concern:

Be it known that I, ARTHUR OowLEs GAY- LORD, of Sandoval, in the countyof Marion and State of Illinois, have invented a new and usefulImprovement in Oolters, of which the following is a specification. v v

My invention relates to colters for plows; and it consists in thepeculiar construction and arrangement of clamp and the parts forming thevertical joint between the standardand the-fork of thecolter and alsothehorizontal bearing for connecting the lower ends of the fork to thecolter-disk, as will be hereinafter more fully described withreferenceto the drawings, in which Figure 1 is a side elevation. Fig. 2is a longitudinal section through the joint between the standard and thefork. Fig. 3 is a. horizontal section passing through broken line 3 3 ofFig. 1 and cutting through both the joint between the fork and standardandalso the center of the colter-disk. Fig. 4 is a rear elevation. Fig.5is a section through the clamp on line 5 5 of Fig. 1. Fig. 6 is an innerface View of ring B. Fig. 7 is a modification of the clamp, and Fig. 8is a cross-section of ring 13.

\ In the drawings, A represents the plowbeam, having attached to it acolterclamp B.

G is the standard, bent or ofiset at its lower end and having aswiveling vertical joint connecting it to the fork D, which carries onthe lower ends of its branches the rotating diskshaped colter E.

The clamp B is designed to provide an improved means for securing acolter-standard to the plow-beam, by which the colter can be adjustedvertically, laterally, and angularly with relation to the plow-beamwithout loosen ing the clamp from the beam or disturbing any otheradjustment when making one, also enabling the colter to be used eitheron small narrow steel beams or large wide woodbeams and be reversiblefor either left or right hand plows.

B Figs. 5, 6, and 8, is a base-ring having perforated ears connected bybolts b b to a cross-bar B on the opposite side of the plowbeam. Thering B is beveled or undercut about half of its circumference at 11 Fig.8. The otherhalf of the circle is beveled the other way or outwardly,and upon this outward bevel are notches or serrations b while the underhalf is recessed from the inner face of circle about five-sixteenths ofan inch at b.

The base portion B of the'clamp locks underthe overhanging edge of ringB on one side, while it fits into the sloping portion and notches b onthe other side in such a manner that when the bolt 1) is inserted andits head engages the cut-away portion b of ring the act of tighteningthe nut of bolt not only draws the sloping portion of clamp down ontothat of the ring, but also engages the notches b of base B with notchesb of the base-ring B and also forces the base of clamp into lookingconnection with the undercut of the ring on the opposite side.

The upper jaw 13 0f clamp I make separate, and one end locks under arecess in the hol- 10w stud b projecting from base portion B of clamp,while the other side is secured with a bolt b. The jaws B B may be madeall in one piece, as in Fig. 7.

By loosening bolt 1) the standard may be raised or lowered or turnedaxially. By loosening bolt b the whole clamp may be rotated in thebase-ring B The standard 0, Figs. 1 and 2, is formed below its offsetwith a conical enlargement c, tapering downwardly, and between this enlargement and its lower end is screw-threaded to receive a nut c, whichis conical on its upper surface and tapers upwardly and has a series ofnotches or serrations on its lower edge to receive a split spring-pin orcotter 0 which passes through diametrical notches in the lower edge ofthe nut and also through a transverse perforation in the lower end ofthe standard. This looks the conical nut in position on the lower end ofthe standard and yet allows it to be raised to bring the twocone-surfaces c and a closer together. On the upper end of the forkthere is formed a hub-like formation having a horizontal slot through itthat divides it into an upper conical bearing d and a lower hollowconical bearing d, that receive, respectively, the conical projection con the standard and the conical upper surface of the nut 0. Within theslot between the upper and lower parts d d of the hub there is aclamp-collar e, Fig. 3, whose two ends are perforated to receive a bolt6, by tightening which the clamp-collar is made to grip the standard andhold it rigidly, so that the fork cannot turn all the way around thestandard in normal action, but said collar forms stops that allow aslight play to the fork about the standard, and when the clamp-collar isloosened by relaxing its bolt c it can be turned around to adjust thecolterblade sidewise and yet keep it parallel with the furrow when thestandard is adjusted axially in its clamp above and the offset below ismade to adjust the colter sidewise.

It is important when wear occurs to take up loose play at the verticaljoint between the standard and fork in such a manner as to always keepthe fork in proper position or alinement and prevent its tiltingsidewise or becoming loose vertically. This is accomplished by adjustingthe cone-bearings c 0 close together, which is done by removing thecotter or spring-key, turning the nut 0 up so as to bring thecone-bearings close together, and then reinserting and locking the nutby the cotter again, which passes through a new set of notches in thenut. The horizontal bearing between the colter-disk and the lower endsof the fork is also constructed with cone-bearings to keep the colter incentral position as it wears. For this purpose clamp-plates f f, Figs. 3and 4c, are arranged on opposite sides of the colter-blade and have ascrew-threaded connection with each other, which when turned up clampsthe colter-blade. The outer ends of the openings through theseclamp-plates are hollowed out in conical shape to receive conicalbushings g g, which are arranged between the branches of the fork andthe colter-plates f f. These conical bushings have each two diametricallugs g g, that fit into corresponding recesses g g in the lower ends ofthe fork branches, so that they may be rigidly locked to the saidbranches of the fork. All these parts are securely connected by an axialbolt h, which passes through the perforated ends of the fork, throughthe conical bushings g g, and through the colterplates ff. \Vhen soconnected, it will be seen that the colter with its hollow conicalplates revolves freely upon the conical and stationary bushings at thelower ends of the fork branches, which causes the colter to remainalways properly centered as it wears.

In making use of my invention I may use any form of jam-nut or lock-nutin the place of the notched nut and cotter, and instead of the splitclamp-collar for locking the standard I may use the well-known expedientof a continuous ring-collar and a set-screw.

In defining my invention with regard to the conical bearings between thestandard and fork and also between the fork and colterblade I wouldstate that I do not confine my self to the particular form andarrangement shown and described, as various modifications thereof may beemployed without departing from the spirit of my invention. My inventionconsists, broadly, in providing conical bearings at these points and inproviding means for adjusting the conical bearings toward each other totake up wear.

Having thus described my invention, What I claim as new, and desire tosecure by Letters Patent, is

1. The standard-clamp comprising a basering having teeth on one side andundercut on the other, clam ping-jaws for the standard,

' having corresponding surfaces to fit the undercut and teeth of thering, and a clampingbolt arranged to clamp the jaws to the ring and toengage the teeth and undercut surfaces substantially as shown anddescribed.

2. The standard-clamp comprising a basering having teeth on one side andundercut on the other, the clamping-jaws B B the jaw 13 havingcorresponding parts to fit the base-ring and also a recessed stud b theclamping-bolt b the jaw B fitting in the recess of the stud, and thebolt 1) clamping the two jaws together substantially as and for thepurpose described.

3. In a plow-colter, the combination of a vertical standard and fork thetwo being connected by a swiveling joint and having conical bearings andmeans for adjusting them toward each other to take up wear substantiallyas described. 7

4. A connection between the standard and a fork of a colter havingconical bearings, means for adjusting one of them toward the other, anda stop device for limiting the play of the fork about the standardsubstantially as described.

5. A connection between the standard and fork of a colter comprising twoconical bearings on the standard, one fixed and theother adjustable, anda hub onthe fork having conical hollow bearings substantially asdescribed.

6. A fork-joint for a colter-standard, consisting of a standard having aconical enlargement and a screw-threaded and perforated end below saidenlargement, a nut having a conical upper surface and locking devicesarranged on said threaded end of the standard; in combination with afork having a hub with hollow conical bearings above and below, and ahorizontal slot across its middle, and a locking-collar arranged in saidslot and provided with means for looking it to the standardsubstantially as shown and described.

7. A fork-joint for a colter-standard, consisting of a standard having aconical enlargement, and a screw-threaded and perfo rated end below saidenlargement, a nut arranged on said screw-threaded end and having aconical upper surface, and a notched lower surface, a spring-cotterpassing through said notch, and the perforation in the stand ard; incombination with a fork having a hub with hollow conical bearings aboveand below and a horizontal slot across its middle, and a splitclamp-collar with locking-bolt for clamping the standard substantiallyas described.

8. In a plow-colter the combination of a disk-colter, itssupporting-fork and a hubrated conical bushings with locking-lugs, and10 an axial bolt passing through all these parts substantially as andfor the purpose described.

ARTHUR GOWLES GAYLORD.

Witnesses:

S. A. INGERSOLL, F. M. BEOKES.

